{
  "manageEntity": {
    "action": "Save",
    "entityId": "7036944",
    "entityType": "Track",
    "nonce": "0xce22d3f472eec94594b01939dcbc1ed5de479999ca1b2c5ee13c7179eb5f789e",
    "signature": "0x0d498cbc59277b7020dc8d081a635d0c67aa7caf24560849cab8823d81b5dc5e4782f71bc633bdc2ff621cb9f61cc6cb1505de32831bf89d7dcca5de6cd1077d1b",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}